20 years
no
2-2.5 years
3 months
yes
20 years
Formal examination and substantive examination are required. Substantive examination begins automatically, without the need to submit a specific request.
- Grant fee: The applicant shall pay the granted announcement fee within 2 months after receiving the official notification.
- Annuity: The annual fee can be paid once every 5 years, and the annual fee can be paid within a grace period of 6 months if the annual fee is overdue, and a 20% penalty should be paid at the same time.
- Grant fee: The applicant shall pay the granted announcement fee within 2 months after receiving the official notification.
- Annuity: The annual fee will be paid year by year starting from the third year (including the first-third year annual fee). Overdue annual fee can be paid within a grace period of 6 months, and a 20% late fee will be paid at the same time.
Reinstatement of priority is accepted on the grounds of "due care".
The novelty grace period is 12 months before the filing date/priority date.